Hermetically-sealed receptacle.



l, C. BOWERS.

HERMETICALLY SEALED RECEFTACLE.

yMJPUCATION FILED Nov.19.19os.

Yrn

IllllFD fra prie,

Jonivblrownas, or Bos'roN, MASSACHUSETTS.

HERMETIOALLYSEALED RECEPTACLE.

Application filed November 19, 1908.

hermetic sealing of cans, boxes, and other' receptacles made from sheet metal, wherein the closure issecured to the body portion without the use of solder, and wherein such closure may be removed without the use of a key or other tool.

The invention adapts itself particularly to receptacles made of tin plate.

According to my present invention the outer edges of the seaming flanges are of single thickness. The shoulder in the seaming flanges is formed by indenting the seaming flanges, and the sealing strip 1s conformed to the shoulder thus formed so as to provide a tight joint, and whereby the seal ing strip is held firmly in place. The shoulder is preferably formed at the time of applying the strip to the same.

In the accompanying drawing I haveI shown a practicable embodiment of the invention. In this illustration my 1mprovements are shown applied to a tin boX of a kind commonly employed in packing fish, meat, and the like. This form of receptacle is selected merely for convenience of illustration.

Figure lis a perspective view of a tin boX or can, the general form of which is Well known, but which has my improvements applied thereto. Fig. Q'is a vertical central section of Fig. 1, taken on a plane at about the line 2 2. Fig. 3 is a. perspective view of the receptacle showing the sealing strip partly detached. Fig. 4 is a detail showing the manner of overlapping the ends of the sealing strip. Fig. 5 is an enlarged detail view, in section, showing the seaming flanges of the receptacle and closure with the sealing strip applied thereto, but before the strip and flanges have been bent into their final form. Fig. 6 is'a similar View showing the parts after they have been bent into their final form. Fig. 7 is a view showing the reversal of the parts shown in Fig. 6; and Fig. 8 is a perspective view of a.`

form of sealing strip before it is bent into its U-shaped cross-section and showing the Specification of Letters Patent.

Patented Nov. 23, i915.

Serial No. 463,414.

manner in which its opposite ends maybe beveled.

The box A, is shown having at its upper edge a seamlng flange a, projecting outwardly from the box. The closure B, herein illustrated is formed with a central depressed portion surrounded by side walls b,

lwhich lie close t0 the vertical walls of the boX A, near its upper end, and an outwardly-projecting seaming flange b2, which surrounds the cover and overlaps the seaming flange a, of the body A.

The manner in which the cover may be appliedto the bndy of the receptacle is ilus trated in Fig. 5, the flat face of the flange b2 resting on the flat face of the flange a. After the seaming flanges have been super- .posed one upon the other, a sealing strip D,

is removably applied to the seaming flanges. This strip is preferably made of thin mallea-ble metal which may be easily bent and formed into shape, which shape will be maintained during shipment andv storage.

The strip will be so applied that when it is desired to remove it and fo-rce is applied, it will yield and separate from the joint. Upon removal of the strip the closure may then be removed. The strip D, before being connected with the receptacle, is preferably substantially U-shape in crosslsection and is provided with flanges 0l,- al, between which is achannelto receive the seaming flanges. The arch of the sealing strip in the present illustration covers the free outwardly-directed edges of the seaming flanges. The channel is shown sufliciently wide to allow the flanges to enter and approximately fill it. The strip is made entirely to surround the joint. One end of the strip is shown overlapping the other end, which overlapping may be in the form A of a tongue E.

After the parts have been loosely assembled, suitable mechanism, such as properly formed rolls or dies will compress the strip,

tightly upon the seaming flanges. The rolls or dies, by their formation, will produce in the flanges indentations, producing an inwardly-directed shoulder on one flange and 'a corresponding recess in the. other flange.

The seaming flanges are indented one into the other and the flanges of the sealing strip into these. The free edges of the 'superposed flanges are covered by the sealing strip and held in place by the offset in the flanges which is located inwardly of such edges.

g; y anni.

Y :in forming the shoulder and reoess in the a corresponding I'Wina eled as at e2. Ilie 'opposite end flan oit' the seaiinfr C -have its outer .surface lapping seeming flanges,

seainin'g llanges, the

the

seaniing flanges v.v a.. suoli opera have an inner and an ener :ioneand if) respectively, disposed 1n sans-tr parallel planes, ano zone 3, interraeeiate thereof disposed in a plane transverse thereto, the transverse one ei one il n being located in sneh position that the e.'- posed. surfaee el, thereof will face inwardly, and the transverse zone of the o r iange being; so located that the exposed sartene 5, thereof will 'face outwardly. @ne el' the ip will ove-[lie :vnd and located ig ring strip with the enter Zone of the other of said seznnin, flanges and flush with the outer surface oit the inner Zone o? flange, and its free edge 7, adjacent the aid outeraoing surface 5, of the intermediate zone of such iange.

ln Fig. 7' 'the inwardlyaeing mulder tor locking` the sealing strip in entren-d natevwith one oli the movement ,is shown carried ine under 'face of the liange a., of the receptacle il.. n the other views the inwardly-facing looking shoulder is carried by' the seeming' flange o2 of the Closure B Theshoulder-forinhig indentations oi.l the sealing; vstrip' and the ing flanges ai preferably l'orined at one operation. i

blank is illustrated in S from vfl'iieh 'the seahngstrip may be made. .t one end of this blank there illustrated a tongue somewhat narrower than the reinainin portion of the strip. This tongue may he herthe is shown snitahly'loeveled at o to mate Y with. ln Fig. 4 the inner end ofthe sealing strip is shown .so beveled, rolled down or tapered, that Vwhen the enter end oi the .EV formed as an extension from one end 'for overlyii'igl .the other end.

I claim as my invention '1. An easily opened air tight i'eeptacle comprising a body portion, and a` eoveig the body at its upper edgeand the @over both being formed with outwardly projecting one of which is -eover having a` depressed portion fitting in bent do 'forni a shoulder while the other eorrespondina'li' bent to coincide therewith. and a U :eino\'ahh'e.thin malleable metal. sealii strip appliei'l to the llanp; s and enmto snugly enga or lit the shoulders and a readily removable .sealing strip ha ving llanfws -iiielosin the lianwof oi the recoipars, said seaniing su .p being formed thin nialleahle metal, the receptacle flanges und a strip llaixge lining` bent to 'forni interloel onlin., .ent shoulders.

A. l I* ,v man f.. tO-i f ...up (5|. i. 2,11 L) Upriiltl .lli lbil.` IN1] .le (er comprising( two Sheet metal parts havin?,` superimposed #flanges-s nach coinprisinn` 1-, sin gie thickness ol ye n'alal. and a .sealing strip eiiibraeinp: said .fhingljrs and surround infr the rmfeptarle. said sealing strip coin prisin a ehannelalhapeil piece ol thin inalsheet niet l held in place by its oontaot with the flanges.

5. fr seam .i r receptacles eoinprisiireY flanges on the receptacle pa said llanges being; olf substantially uniform lhirhness and being; superimposed. and a readily removable sealing strip inliraeinn` said flanges and intel-lookin` therewith. said .sealing strip hoing,` formed ol3 thin malleable nulial and constitu the only means 'lor holding the ron eeptaole l mires grethrr, the .sr-allo; .strip being' retained in position lby ils 'lrirtional and interlocking engagonuait w'th the flanges.

(l. in easily opened air tight receptacle comprising a oar body having?r an outwardly en ending flange [bout its open end. a cover having a depressed portion 'tilting in the open end of said can body, and having,` an outwardly extendingv flange superimposml on the lange et the can body, and a ailing strip eoinprisnig a Chainiel-shapm'l piece ol thin, malleable sheet niot'al embracing` .said flanges, said flanges and a flange ol said sealing strip being" bent to fo. in intrrlmflo ing shoulders, said sealing strip being' held in place hylirirftional and interlocking engagement with said receptacle and Cover :ii'ts.

7. An easily opened air tight receptacle comprising a sheet nietal can body having an outnaidly extending,- flange comprising,r a, single thickness of the metal, a sheet metal the open end. of said can body and having mezieres an outwardly extending flange comprising1 a single thickness of the -metal and superimposed. upon the flange on said can body, and

, an easily removable sealing strip comprising "a' channel-shaped piece olf thin malleable sheet metal of substantially uniform thickness surrounding and embracing said flanges and held in place by its engagement therewith.

8. An easily opened air tight receptacle.

comprising two sheet metal parts having superimposed flanges" anda sealing strip surroumling and embracing said flanges, said selling;` strip comprising` a ehannel-shaped. piece. of thin malleable sheet l'netal of substantially unitorni thiclzness, one [lange of said sealing strip and the flanges ol' said re* ceptacle parts being oflset a distance approximately equal to the thickness of the metal ol" said sealingl strip.

9. seam for receptacles ron'iprising langeson the receptacle parts, and a readily removable sealing strip coinl'irising a channel-shaped member ol' thin malleable metal embracing said flanges, said sealing stri and reeei'rtacle flanges being pressed together and the receptacle flanges and a flange on said sealing strip being offset between the edges thereof to form two zones l ying in substantially parallel planes.

l0. The combination with a receptacle and a cover therefor, each of these having an outwardly directed flange, such flange having an outer and an inner zone disposed in substantially parallel planes and a rone interi'nediate thereof disposed in a plane transverse thereto, the transverse zone of oneI flange being located in surh position that the exposed surface thereot` will face infardly and the transverse :cone of the other flange being so located that the exposed surface thereof will lace outwardly, and a readily removable thin malleable metal sealing strip having two united flange-s one overlying and mating with one of said first men tioned llanges and ha ving a transversely disposed zone located inwardly of the said inwardly facing surface, and the other flange ol the 'fastening member overlying and Inating' with the outer zone of the other of the said first mentioned flanges and having1 its outer surface flush with the outer surface of the inner zone of such flange.

ln testimony whereof, l subscribed vmy name.

JOHN (l. B( HYERES,

have hereunto vlWitnesses (licorice B. (kunnen, Roemer (on'roN 

